<?php

/**
 * LoginForm class.
 * LoginForm is the data structure for keeping
 * user login form data. It is used by the 'login' action of 'SiteController'.
 */
class LoginForm extends CFormModel
{
	public $username;
	public $password;
	public $rememberMe;
    public $userType;

	private $_identity;
    
    public function __construct($arg = 'Front') {
        $this->userType = $arg;
    }

	/**
	 * Declares the validation rules.
	 * The rules state that username and password are required,
	 * and password needs to be authenticated.
	 */
	public function rules()
	{
		return array(
			// username and password are required
			array('username, password', 'required', 'message' => '{attribute} không được để trống'),
            array('username', 'email', 'message' => '{attribute} không hợp lệ'),
            array('password', 'length',
                'min' => '6',
                'max' => '32',
                'tooLong' => '{attribute} không quá 32 kí tự',
                'tooShort' => '{attribute} ít nhất 6 kí tự',
            ),
			// rememberMe needs to be a boolean
			array('rememberMe', 'boolean'),
			// password needs to be authenticated
			array('password', 'authenticate'),
		);
	}

	/**
	 * Declares attribute labels.
	 */
	public function attributeLabels()
	{
		return array(
            'username' => 'Email',
            'password' => 'Mật khẩu',
			'rememberMe'=>'Lưu thông tin đăng nhập',
		);
	}

	/**
	 * Authenticates the password.
	 * This is the 'authenticate' validator as declared in rules().
	 */
	public function authenticate($attribute,$params)
	{
		if(!$this->hasErrors())
		{
			$this->_identity=new UserIdentity($this->username,$this->password);
            $this->_identity->userType = $this->userType;
			if(!$this->_identity->authenticate())
				$this->addError('password','Sai tên đăng nhập hoặc mật khẩu.');
		}
	}

	/**
	 * Logs in the user using the given username and password in the model.
	 * @return boolean whether login is successful
	 */
	public function login()
	{
		if($this->_identity===null)
		{
			$this->_identity=new UserIdentity($this->username,$this->password);
			$this->_identity->authenticate();
		}
		if($this->_identity->errorCode===UserIdentity::ERROR_NONE)
		{
			$duration=$this->rememberMe ? 3600*24*30 : 0; // 30 days
			Yii::app()->user->login($this->_identity,$duration);
			return true;
		}
		else
			return false;
	}
}
